<template>
  <div>
    <h3>header----{{count}}</h3>
    <div class="box">我是一个盒子</div>
  </div>
</template>

<script>
export default {
  name: 'Header',
  data() {
    return {
      count: 1
    }
  }
}
</script>

<style>
</style>